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>Check rrd file ownership</A
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><P
>If rrd files were created e.g. with root ownership,
			a poller running as cactiuser will not be able to update
			those files</P
><PRE
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>cd /var/www/html/cacti/rra
ls -l localhost*
-rw-r--r--  1 root      root      463824 May 31 12:40 localhost_load_1min_5.rrd
-rw-r--r--  1 cactiuser cactiuser 155584 Jun  1 17:10 localhost_mem_buffers_3.rrd
-rw-r--r--  1 cactiuser cactiuser 155584 Jun  1 17:10 localhost_mem_swap_4.rrd
-rw-r--r--  1 cactiuser cactiuser 155584 Jun  1 17:10 localhost_proc_7.rrd
-rw-r--r--  1 cactiuser cactiuser 155584 Jun  1 17:10 localhost_users_6.rrd</PRE
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>Run the following command to cure this problem</P
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>chown cactiuser:cactiuser *.rrd</PRE
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